Continuing the nine-hour celebration of the music of J.S.Bach, recorded on Easter Monday in the Royal Albert Hall and originally presented live on BBC Radio 3 by Tom Service and Catherine Bott. Organist and musicologist John Butt talks about the Goldberg Variations and we also hear Howard Moody rehearsing the audience in the chorale that ends the cantata, before Sir John Eliot Gardiner takes over for the performance. Gardiner also talks about one of his heroes: Benjamin Britten.